sudo sh -c '(echo "#!/usr/bin/env sh" && curl -L https://github.com/com-lihaoyi/Ammonite/releases/download/2.4.0/2.13-2.4.0) > /usr/local/bin/amm && chmod +x /usr/local/bin/amm' && ammamm dedup.scala bitwarden.json
| # Creates a "dummy" network interface | |
| # we'll configure this interface with a link-local address | |
| # See: https://www.freedesktop.org/software/systemd/man/systemd.netdev.html | |
| ## | |
| [NetDev] | |
| Name=dummy0 | |
| Kind=dummy |
This is a script written in Python intended to run alongside a Bitcoin node and export statistics for monitoring purposes. It assumes the existence of bitcoin-cli in the PATH and access to the RPC interface over localhost.
It tracks stuff like: block height, difficulty, number of peers, network hash rate, errors, uptime in seconds, mempool size, size of recent blocks, number of transactions within blocks, chaintips, total bytes received and sent, and transaction inputs and outputs. These Bitcoin metrics are refreshed once every 5 minutes.
Prometheus is a monitoring system and time-series database.
I'm going to start off by motivating what I'm doing here. And I want to be clear that I'm not "dissing" the existing collections implementation or anything as unproductively negative as that. It was a really good experiment, it was a huge step forward given what we knew back in 2.8, but now it's time to learn from that experiment and do better. This proposal uses what I believe are the lessons we can learn about what worked, what didn't work, and what is and isn't important about collections in Scala.
This is going to start out sounding really negative and pervasively dismissive, but bear with me! There's a point to all my ranting. I want to be really clear about my motivations for the proposal being the way that it is.
A primer/refresher on the category theory concepts that most commonly crop up in conversations about Scala or FP. (Because it's embarassing when I forget this stuff!)
I'll be assuming Scalaz imports in code samples, and some of the code may be pseudo-Scala.
A functor is something that supports map.
| #!/bin/bash | |
| # | |
| # consul Manage the consul agent | |
| # | |
| # chkconfig: 2345 95 95 | |
| # description: Consul is a tool for service discovery and configuration | |
| # processname: consul | |
| # config: /etc/consul.conf | |
| # pidfile: /var/run/consul.pid |
| scalaVersion := "2.11.4" | |
| libraryDependencies += "org.scalaz" %% "scalaz-core" % "7.1.0" | |
| libraryDependencies += "org.scala-lang" % "scalap" % scalaVersion.value | |
| InputKey[Unit]("scalap") := { | |
| import complete.DefaultParsers._ | |
| val classes = spaceDelimited("<class names>").parsed | |
| val classpath = "-classpath" :: (fullClasspath in Compile).value.map(_.data).mkString(":") :: Nil |
| import scala.language.experimental.macros | |
| import scala.reflect.macros.blackbox.Context | |
| trait Mappable[T] { | |
| def toMap(t: T): Map[String, Any] | |
| def fromMap(map: Map[String, Any]): T | |
| } | |
| object Mappable { | |
As compiled by Kevin Wright a.k.a @thecoda
(executive producer of the movie, and I didn't even know it... clever huh?)
please, please, please - If you know of any slides/code/whatever not on here, then ping me on twitter or comment this Gist!
This gist will be updated as and when I find new information. So it's probably best not to fork it, or you'll miss the updates!
Monday June 16th
| #chat-box.ubuntu.hidden-xs | |
| .closed | |
| .pull-right | |
| = link_to_function content_tag(:i, nil, class: 'glyphicon glyphicon-chevron-up').html_safe, 'chat.show()' | |
| .m-l-small | |
| = link_to_function 'Chat with us', 'chat.show()' | |
| .opened{style: 'display: none'} | |
| .header | |
| .pull-right | |
| = link_to_function content_tag(:i, nil, class: 'glyphicon glyphicon-plus-sign').html_safe, 'chat.maximize()', class: 'maximize', style: 'display: none' |
